UN Secretary General Ban Ki-moon has renewed his appeal for transparent, inclusive and credible elections, in Bangladesh.He said transparent, inclusive and credible elections are only possible in a secure and safe environment for campaigning.Spokesman for the Secretary-General Stéphane Dujarric said this at a regular briefing at the UN headquarters on Wednesday.About attacks on the motorcade of BNP Chairperson Khaleda Zia, the Spokesperson said, "We're aware that the responsible authorities are investigating the incidents."Earlier in a statement on April 4, the Spokesman said Ban Ki-moon welcomed the de-escalation of violence in Bangladesh in the past weeks. ?UNB